BASKETBALL Boys basketball: Aidan Roy, Will Plunkett rally Mamaroneck to a win over New Rochelle Mike Dougherty Rockland/Westchester Journal News Hear this story View Comments View Comments Monday MLK Day tournament Yonkers 52, Riverside 45 Ethan Borrero led the Bulldogs with 15 points and eight rebounds while Nathan Joseph and Shael Lopez added 13 points apiece in the win. Obama School 73, Gorton 45 Louis Martinez finished with 18 points and six assists for the Lightning. Miguel Gonzalez added 15 points and nine assists, Xavier Merrill and Dontaye Dunkle got 12 and 10 point, respectively, in the win. Marvin Duarte…